Cannot open output ROOT file

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_Geant4 Version:_11.2
Operating System: Window 11
CMake Version:

Hi all,
I have a problem with Geant4 output in ROOT format as show in attached image.

I hope can anyone help me to fix the problem.
Thank you in advance.
Best regards.

Have you tried the suggestions in your cross-post here: There is an error when opening root file - ROOT - ROOT Forum?

Thanks @bmorgan.

  • Because the output file was generated from Geant4. So I hope anyone are expert in Geant4 and ROOT can help me fix the problem.
  • I think it is due to the scale factor that I set in the SetNumberOfParticles method of PrimaryGeneratorAction class.
	fPrimaryGeneratorActionMessenger = new PrimaryGeneratorActionMessenger(this);
	particleGun = new G4ParticleGun();
  • The last test with a factor of 250 was no error. The below output is the result of the test (BeamOn=1E9, Scale Factor=250). Here
  • If I scale it to 500 times, the error is like the post.Here is the result.

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